Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is an additional front view thereof showing additional, unclaimed subject matter.

The dash-dot broken lines in the figures represent an unclaimed boundary line and form no part of the claimed design.

The outermost broken lines in FIG. 2 showing a display screen or portion thereof are included for the purpose of illustrating portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 